One of the Territorial Army soldiers who died on the Brecon Beacons on Saturday was a Maths teacher from Lewisham.
Lance Corporal Craig Roberts was taking part in a military training exercise, believed to be part of selection for the TA's section of the SAS.
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Police have arrested a man wanted in connection with a burglary at the home of pensioner Richard Osborn-Brooks.
The rally comes after it emerged that the Home Office destroyed thousands of landing cards documenting the arrival of windrush-era migrants
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